Agrostis joyceae S.W.L.Jacobs. Telopea
9:680(2001).
Classification. (GPWG 2001) : Subfamily Pooideae.
Tribe Poeae.
Type of Basionym or
Protologue Information: New South Wales: Southern Tablelands: Prussian
Creek, alt. 5600 ft (1707 m), Kosiuszko [as Kosiusko] National Park, in leaf
litter on rock ledge, 1 Feb 1974, J. Thompson 2031 (HT: NSW-506464).
Key references
(books and floras): [2002] D.Sharp & B.K.Simon, AusGrass, Grasses of
Australia, [2008] S.W.L.Jacobs, R.D.B.Walley & D.J.B.Wheeler, Grasses
of New South Wales (110), [2009] A.Wilson (ed.). Flora of Australia,
Vol 44A. Poaceae 2 (171).
Illustrations:
[2008] S.W.L.Jacobs, R.D.B.Whalley & D.J.B.Wheeler, Grasses of New South
Wales, 4th edn (110).
Derivation: in
honour of Joyce W. Vickery (1908–1979), Australian Botanist.
Habit. Annual.
Culms erect or geniculately ascending, -40 cm tall, -2 -noded. Leaves mostly
basal. Ligule an eciliate membrane, -3.5 mm long, obtuse. Leaf-blades -1.5 mm
wide.
Inflorescence. Inflorescence
compound, a panicle.
Spikelets.
Fertile spikelets 1-flowered, comprising 1 fertile floret(s), 1.8–2.5 mm long.
Glumes. Glumes
similar. Lower glume lanceolate, 1 -nerved. Upper glume lanceolate.
Florets.
Fertile lemma 1.5–1.8 mm long. Lemma apex truncate, muticous.
Australian
Distribution: New South Wales.
New South Wales:
Southern Tablelands.
Notes. Although
it differs little from A. thompsonae and A. parviflora in its
measurements, it grows sympatrically with these species and the specimens from
a mixed collection can be readily separated on inflorescence characters. Agrostis
joyceae differs readily from A. parviflora in the larger
inflorescence with more flexuose branches and longer pedicels.
